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METHOD AND APPARATUS TO ENABLE FINER-GRAINED, SCALABLE ALLOCATION OF STORAGE IN A DATA STORAGE SYSTEM
METHOD AND APPARATUS TO ENABLE FINER-GRAINED, SCALABLE ALLOCATION OF STORAGE IN A DATA STORAGE SYSTEM
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机译:在数据存储系统中实现细粒度,可分级存储的方法和装置
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摘要
In one aspect, the invention is directed to a method of expanding storage for filesystems in a fine-grained, scalable manner. The method includes determining, by a file server, a run bias for a span, wherein the run bias indicates a number of contiguous chunks of memory associated with an entry in an address translation table for a filesystem. The method includes receiving, by the file server, a request for an expansion of memory for the filesystem. The method includes scoring, by the chunk allocator, each stripe set in a group of stripe sets based at least in part on a number of unused chunks on the stripeset and a number of chunks on the stripeset being used by the filesystem. The method includes allocating, by the chunk allocator, a chunk on the stripeset with the highest score, wherein the allocated chunk lies outside of runs reserved for other filesystems.
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